Subleading power factorization in B¯→Xsℓ+ℓ

A bstract We analyze the factorization to subleading power in the flavor changing neutral current process B ¯ → X s ℓ + ℓ − . In particular, we compute the so-called resolved contributions and explore the numerical impact on observables. In these contributions the virtual photon couples to light par...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2017; no. 10
Main Authors Benzke, Michael, Hurth, Tobias, Turczyk, Sascha
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 04.10.2017
Subjects
Classical and Quantum Gravitation
Elementary Particles
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Heavy Quark Physics
Effective Field Theories
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Summary:A bstract We analyze the factorization to subleading power in the flavor changing neutral current process B ¯ → X s ℓ + ℓ − . In particular, we compute the so-called resolved contributions and explore the numerical impact on observables. In these contributions the virtual photon couples to light partons instead of connecting directly to the effective weak-interaction vertex. They represent an irreducible uncertainty in the inclusive B ¯ → X s ℓ + ℓ − decay which cannot be removed by relaxing the experimentally necessary cuts in the hadronic mass spectrum.
ISSN:1029-8479
DOI:10.1007/JHEP10(2017)031